Home / 2,626.89-3,626.19-1,578.75

Finding the Fourth Proportional to 2,626.89, 3,626.19 and 1,578.75

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Solution

The fourth proportional to 2,626.89, 3,626.19 and 1,578.75 is: 2,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.89 : 3,626.19 = 1,578.75 : x
  2. Step 2: Convert to fraction form
    2,626.89/3,626.19 = 1,578.75/x
  3. Step 3: Cross multiply
    2,626.89x = 3,626.19 × 1,578.75
  4. Step 4: Simplify right side
    2,626.89x = 5,724,847.46
  5. Step 5: Solve for x
    x = 5,724,847.46/2,626.89
  6. Step 6: Final answer
    x = 2,179.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.